Re: wiil an earlier head 48?fit on a 53 327 straight 8?

Posted by Owen_Dyneto On 2012/12/20 13:55:03

A change occured with the advent of the 22nd series when Packard "rationalized" their engines to all share the same bore; thus 8-cylinder heads interchange on all the monoblock engines with 3-1/2 inch bore, the 288, 327 & 356 and also the later 359 (which basically an overbored 9-main 327) though of course there will be compression ratio changes. Bore centers were different on the 282 & 257 engines and they don't interchange with the later engines.